| Summary: | 碩士 === 中原大學 === 機械工程學系 === 87 === Rotating machines should be kept in good condition, during operation in high speed. When elements of a machine fails, vibrations and damages are resulted. Hence, the distinguishing of abnormal signature are need before the failure happens. In this study, the misalignment, single tooth defects, and defect in outer race of bearing are considered by using methods of time waveform, the averaging of time series, spectrum analysis and modal analysis the differences between the normal signal and the faulty one to establish the characteristics of faulty signal,
The inference mechanism is used to establish expert system for diagnosis.
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